Table 1 Correlation between the presence of NDRG4-SPR methylation and well-established prognostic factors in 61 patients with breast invasive ductal carcinoma

From: NDRG4 promoter hypermethylation is a mechanistic biomarker associated with metastatic progression in breast cancer patients

Parameters

 

NDRG4 promoter status

  

Meth (%)

Unmeth (%)

p

Age of patient (y)

<=40

8 (72.7)

3 (27.3%)

 

>40

43 (86%)

7 (14%)

0.367

Grade

1

7 (87.5%)

1 (12.5%)

 

2

31 (91.2%)

3 (8.8%)

 

3

13 (68.4%)

6 (31.6%)

0.095

SBR grade

1

13 (86.7%)

2 (13.3%)

 

2

29 (80.6%)

7 (19.4%)

 

3

8 (100%)

0

0.373

Lymph node

0

23 (88.5%)

3 (11.5%)

 

involvement

1–3

18 (94.7%)

1 (5.3%)

 
 

>4

10 (62.5%)

6 (37.5%)

0.025

ER

Neg

18 (81.8%)

4 (18.2%)

 

Pos

33 (84.6%)

6 (15.4%)

1

PR

Neg

35 (85.4%)

6 (14.6%)

 

Pos

16 (80%)

4 (20%)

0.716

p53

Neg

38 (92.7%)

3 (7.3%)

 

Pos

11 (64.7%)

6 (35.3%)

0.014

Initial tumor size

<2

18 (94.7%)

1 (5.3%)

 

(cm)

2–5

30 (83.3%)

6 (16.7%)

 
 

>5

3 (50%)

3 (50%)

0.036

Lymphatic

Neg

15 (93.8%)

1 (6.3%)

 

Invasion

Pos

24 (72.7%)

9 (27.3%)

0.199

Perineural

Neg

30 (85.7%)

5 (14.3%)

 

Invasion

Pos

17 (77.3%)

5 (22.7%)